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LBI-38836B
CHARGING THE BATTERY PACKS
New batteries or batteries that have been stored for a
long period of time, should be fully charged before placing
into service. When the battery pack requires charging the
"BAT" indicator in the LCD will turn on and the radio will
sound a high pitch tone every 130 seconds.
Rechargeable batteries in some applications can develop
a condition of reduced capacity, sometimes called "Memory
Effect". This condition may occur when:
1. The battery is continuously overcharged for long peri-
ods of time.
2. A regularly performed duty cycle allows the battery to
expend only a limited portion of its capacity.
If the rechargeable battery is only sparingly or seldom
used and is left on continuous charge for one or two months
at a time, it could experience reduced capacity. This would
severely reduce the life of the battery between charges.
The most common method of producing this limited
capacity is regularly performing short duty cycles; when the
battery is operated so that only a portion (2%) of its capacity
is expended. This type of operation can cause the battery to
become temporarily inactive and show severe decrease in the
ability to deliver at full rated capacity.
Any rechargeable battery showing signs of reduced ca-
pacity, should be taken to a qualified Service Technician to
be carefully checked before being returned under warranty
or scrapped.
Rechargeable Battery Pack Disposal
The product you have purchased contains
a rechargeable battery. The battery is re-
cyclable. At the end of it's useful life
under various state and local laws it may
be illegal to dispose of this battery into
the municipal waste stream. Check with
your local solid waste officials for details
concerning recycling options or proper disposal in your area.
Call Toll Free 1-800-8-BATTERY for information and/or
procedures for returning rechargeable batteries in your state.
Intrinsically Safe Usage
Selected portable radios with appropriate factory installed
F4 Options are certified as Intrinsically Safe by the Factory
Mutual Research Corporation. Intrinsically Safe approval
includes Class l, II, Ill, Division 1 hazardous locations in the
presence of Groups C, D, E, F and G atmospheres. Non-In-
cendive approval includes Class I, Division 2 hazardous
14
locations in the presence of Groups A, B, C and D atmos-
pheres.
Hazardous locations are definedin the National Electri-
cal Code. Useful standards NFPA 437A and NFPA 437M for
the classifications of hazardous areas can be ordered from
the National Fire Protection Association, Batterymarch Park,
Quincy, MA 02269.
CHANNEL GUARD ENCODE/DECODE
The radio can be programmed for Channel Guard
(CTTCSS) encode/decode tone frequencies of Hz to 210.7
Hz, including all of the standard EIA frequencies. Each
channel may be programmed for encode/decode, encode
only, decode only or for no Channel Guard frequency.
A list of the standard tone frequencies is shown in Table
1. A list of digital Channel Guard codes and their equivalents
are shown in Table 2.
Table 1 - CG Tone Frequencies
Standard Tone Frequencies Hz
67.0
97.4
71.9
100.0
74.4
103.5
77.0
107.2
79.7
110.9
82.5
114.8
85.4
118.8
88.5
123.0
91.5
127.3
94.8
131.8
1. Do not use 179.9 Hz or 118.8 Hz in areas served by
60 Hz power distribution systems ( or 100.0 Hz or
151.4 Hz in areas supplied with 50 Hz power). Hum
modulation of co-channel stations may "false"
Channel Guard decoders.
2. Do not use adjacent Channel Guard tone frequencies
in systems employing multiple Channel Guard
tones. Avoid same-areas co-channel use of adjacent
Channel Guard tones whenever possible. As stated
in EIA Standard RS-220, there is a possibility of
decoder falsing.
3. To minimize receiver turn-on time delay, especially
in system using Channel Guard repeaters or receiver
voting, choose the highest usable Channel Guard
tone frequency. Do not use tones below 100 Hz
when it is necessary to meet the receiver response
time requirements of EIA Standard RS-220.
136.5
192.8
141.3
203.5
146.2
210.7
151.4
156.7
162.2
167.9
173.8
179.9
186.2
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